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Kherd, Ahmed and Saaban, Azizan and Man, Noraziah (2014) Surface interpolation using partial differentiation equation with positivity preserving cubic said-Ball curves boundary condition. AIP Conference Proceedings, 1602 (1). pp. 429-434. ISSN 0094-243X

Kherd, Ahmed and Saaban, Azizan and Man, Noraziah (2016) An improved positivity preserving odd degree-n Said-Ball boundary curves on rectangular grid using partial differential equation. Journal of Mathematics and Statistics, 12 (1). pp. 34-42. ISSN 15493644